Superfeed system for internal-combustion engines



Dec. 8,1925.

G. FORNACA ERFEED SYSTEM FOR INTERNAL COMBUSTION ENGINES Filed Dec. 1a 1924 lll .Il

Patented Dec. 8, 19245. y

UNITI-:D STATES- GUIDO FORNACA, OF TURIN, ITALY.

SUPERFEED SYSTEM FOR INTERNAL-COMBUSTION ENGINES.

Application nled'December 18,1924. Serial No. 756,76-B,

To all whom t may concern.'

Be it known that I', GUIno FoRNAcA, a subject of the; King of Italy, resident of 7 Via Giannone, Turin, in the yKingdom of Italy, and whose post-oiice address is 7 Via Giannone, Turin, Italy, have invented certain new and useful Improvements in Superfeed Systems for Internal-Combustion Engines: and I do hereby declare the following to be a full, clear, and -eXact description of the invention, such as willenable others skilled in the art to which it appertains to make and use the same, refer- 'ence being had` to the accompanying drawings, and to letters or figures of reference marked thereon, which form a yparttof this specification.

This inventlon relates toisuperfeed systemsI for internal combustion engines of that type in which the inlet pipes pass through the engine casing to the engine cylinders.

In-accordance with the present invention there is provided an improved arrangement having the characteristic feature that the portions o-f the inlet pipes which-extend through the casing serve to connect and strengthen the parts of the latter and also to support the compressor for the system.

Preferably 'the aforesaid portions of the inlet pipes are provided with shoulders or flanges and screw nuts for connecting lthe v parts -of the engine casing; and the compressor casing 1s mounted on thekupper .por-v tions 4of the pipes. v

The Huid compressed by the compressor may be conveyed to the inlet pipes through branch pipes arranged to pass through water or oil coolers. Y i

One form of the invention is illustrated by way of example diagrammatically on the accompanying drawing, to which reference will now be made.

1 indicates the engine cylinders disposed in two inclined series andlixed to a base 2 having a lower portion 3, the parts 2 and 3 together forming the engine casing.' A compressor 4 is arranged between the l, two series of cylinders being mounted on the inlet pipes 5 which, as shown, pass through the eng-ine casing and serve to strengthen and v.sor mounted on said pipes between the cylof the crank case together, a compressor lthe parts of the latter by means of nuts 6 in conjunction with y shoulders or flanges 7 on the pipes.

In the lower parts of the inlet pipes are fixed carburetters 8 which receive airfrom 5 the compressor 4 through pipes 9 of suitable length passing through'water or oil coolers 10.

At the upper parts the pipes 5 communicate by ducts 11 with the engine c vlin- 60 ders 1. t

The form and constructive details of the arrangement may, of course, vary from those. above described without departing from the spirit or scope of the invention. 6

What I claim is: i

l1. An internal combustion engine of the V-type, comprising a crankcase formed of separate superposed parts, cylinders mountedon the crank-case, fuel supply-,pipes con-i stituting connecting means forsaid crankcase parts communicating with the cylinders and extending through the crank case, and means on the pipes for clampingl the parts of the crank-case together.

i 2. An internal combustion engine of the V-type, comprising a crank-case formed of separate superposed part-s` cylinders mounted on the crank-case, fuel supply-pipes constituting connecting means for said crankcase partscommunicating with' the cylinders and extending through the crank-case, means on the pipes :for clamping the parts of the crank-case' together, and a compresinders.

3'. An internal combustion engine of the V-type, comprising a. crank-case formed of sopa-rate superposed parts, cylinders mount-l ed on the crank-case, fuel supply pipes constituting connecting means for said crankcase parts communicating with the cylinders and extending throughv the crank-case, means onf the pipes for clamping the parts mounted on said pipes between the cylinders, carburetters communicating Vwith the pipes, and conduits connecting the compressor with the fuel supply` pi es.

In testimony that I claim the asmy invention, I

foregoing have signed my name.

, GUIDO FORNACA. 

